Winding machine



I... F. BLUME WINDING MACHINE venor I Louis E Blume His fflorneg fromthe outside to the inside.

Yes;

rplates tending to urge them together.

'ing nozzle or tube 41.

the presser plate 22 rises upwardly as the winding grows. kl providemeans 'for supplying a pressure between the two presser A lin thisinstance there are shown weights 26 disposed on the horizontal flange otthe stationary presser plate 22. By using the proper amount ot weightsan appropriate pressure may be provided.

The flexibility and resiliencek ot' thesta.- tionary presser plate 22whereby it may yield to the ioree exerted on it by the conductors asthey are wound, are ot `great importance, since inl this way a fairlyuniform pressure may be exerted on the turns, due to vweights 26. Thisis especially necessary when a layer is just being started, since thenthe entire presser plate it it were not made ot flexible material would`rest totally on a. single turn or a part ot a turn. Rendering .itflexible will relieve this pressure and will enable one to start thelirst turn in a layer without diculty.

'In order to .torma compact winding whereby the succeeding turns in alayer may be tight one against the other, l provide means whereby theyconductor is pulledk in while a spiral is wound from they inside to theoutside from the spool body 1l, and means tending to-.supply theconductor at a rate faster than needed, while it is wound This lattermeansis thus so arranged that'the First turn ofthe layer in winding tromthe outside to the inside is tightly pressed against `the dependingliange Y23, and the succeeding' turns are in' a similar way pressedagainst the precedingturns. To secure this result luse a feed lor therwire between the presser plates producing an axial thrust along' thewire.

The feeding mechanism, is shown gen- 'orally at 2'? and comprises a pairof feed rollsi'28 arranged for rotation from the shatt 13 by means ofthe pulley 29 located on shea' is, idler puueys so, si and se, belt 40`.and pulleys 39.

The conductor 19 is arranged to pass between the bite ot the 'feed rolls28, as clearly shown in l. The idler pulley 30 is supported on a block32 which is held to a supporting' member J-l secured to the base 20. Theidler pulleys 3l and 32 rotate on the shaft 35 appropriately supportedas by straps 35 from the member 33. The `feed rolls are securelytastenedvon shafts SZcand .38, appropriately `siuoported trom the memberSaid shafts carry the smaller pulleys 39, about which passes the belt l0in the manner clearlyv shown iiiF'ig. 1.

- .At-ter the conductor pass s through the bite of the rolls `28 itpasses through a feed- A long helical spring vis used for the body otthis-.nozzle whereby ii-t is rendered ilegible 4and* leasily .energytransmit-ted by bejlt 4t()- adjusted in curves or straight llines asoccasion may demand. The forward endrot this spring is supported in a.block 42 carried betweenL a pair` o'l swinging arms -lf The front end ofthe'nonzle where the wire nently secured to the upper frame i3 but is`deta'chably secured to either one or the other oit the straps e6supported on a stationary part of the apparatus. In this way theswingingF `trame may be resiliently urged either in one direction or theother. In lieu ot or in addition to this spring arrange- Amentliorurging the swinging frame one way or the other, l may provide a guidingheel 4l? on thev underside of the tube 4.-;4.

This heel is shown -in Fig. 4t andis arranged plates. The diameters otthe various pulleys which serve as elemen'tsin the drive for the feedrolls are such that there is always a tendency for the conductor to befed too tast whilev the feed is active. rlhis results in an axial thrustof the conductor through the nozzle el, made use of while wind-ing fromthe outside to the inside, tor pressing the lirst turn againstthe flange23, and sucneeding turns `against thepreceding. The surplus movement istaken care opt by the slipping ot the belt on the pulleys. rllhe amountot' slipping may be regulated by any appropriate means. ln the presentiiistance Iprovide a spring` .49 fastened to an adjustable member 50pivot/ed tothe underside of the support 33. clearly shown in Fig. 2l. Byswinging this member 50 in one direction or tirent-her and clamping itin position by means of the wine; nut,y the tension `ot .the spring'4l?) may be adjusted. rEhe other end et the spring 49 is fastened to amember lpiyoted on sha tt 35 and arranged kto provide a -trictional loadtor sha-ft 3T which carries the upper-'feed rol-l.` It is erident thatby causing a trictional load #to be imposed on -Ithis shaft, the torseeating,A axially upon the condnetor 19 will be reduced,y due to theViiact that more of the is iised :up t ietion. o i

`vis wund troni-d1@ The upper presser CII li O

to the outside the :feed is renderedinoperative as, Yfor example, byremoving the belt 40. Furthermore, matters are so arranged that theconductors are v. pulled betweenthe feed rolls by the rotation of therotatable presser plate i4. This is eii'ected by mounting the spool orreel 53 which carries the conductor on a shaft 5s and in such a way thatthere is an opposition to the rotation ot the reel This opposition maybe due to friction or the action of weights or springs in wellunderstood expediente.

`In addition to the provision ot an axial thrust on the conductor whileit is wound from the outside ot the spiral to the inside, I provideappropriate means for taking the load ottn the feed rolls for pullingthe conductor oli ot the reel 53. To do this I provide a drum 55 rotatedby any appropriate means, as by the motor l5; the conductor 19 is woundseveral times about this drum. It the feed rolls 28 pull this conductor1 9 taut enough friction is present between the conductor andthe tace ofthe drum 55 so as to cause it to be advanced by the rotation ot' thisdrum. This results in slacking the coin ductor automatically before itreaches the feed roll 28 and relieves the feed roll ot the work olpulling the conductor. When the spiral, however, is wound from theinside to the outside, this drum 55 is not used and the conductor 19 istaken od ot the drum entirely. Under such circumstances as explainedbefore, an appreciable force opposing the pull on the conductor may beprovided to lay the turns tightly against each other.

As the coil is wound layer after layer the presser plate 22V risesvertically. After it has been wound with the required number of layersand turns, the presser plate Q2 may be removed entirely troni themachine. Belt l0 must ot course be taken ott of pulley 29 and the iframe23 swung away. The entire coil can then be removed trom the rotatablepresser plate and a new one started. In starting` a new layer, themachine is stopped, the spring e5 adjusted and. the belt 40 and drum 54rendered operative or inoperative as occasion demands.

It apparent that I have invented an en tremely simple and eiiicienttorni et apparatus for winding coils in the manner described. IVhile Ihave shown in the accom: panying illustrations the preferred embodimentof my invention, I do not wish to be limited thereto but aim to embracein the appended claims all modifications falling fairly within the scopeof my invention.

llVhat I claim as new and desire to secure by Letters .Patent olf theUnited States, is :f-

l. In a machine for winding coils in dat spirals, a rotatable presserplate, a station ary presser plate, means for urging said platestogether, and means ior feeding a couductor between said presser plates.

2. In a machine for winding coils in flat spirals, a pair ot presserplates between which the spirals are wound, means tor rotating one ofsaid plates, and feeding mechspirals, a pair ot' presser plates betweenwhich the spirals are wound, means tor rotating one of said plates,means for causing the `coin-:luctor to be pulled against an appreciableopposing :torce while it is wound from the inside to the outside, andmeans tending to advance the conductor faster than it is wound whilewinding from the outside oi the spiral to the inside.

5. In a machine for winding coils in flat spirals,` a non-rotatablepresser plate, a rotating presser plate, a feed roll tor the conductorto be wound,-and means for driving said roll, said driving means beingso proportioned that while effective it tends to rotate the roll at arate faster than that required to feed the conductor.

6. In a machine for winding coils in flat spirals, a stationary presserplate ot thin `flexible metal, a rotatable presser plate, and

means for urging said plates together.

7. In a machine for winding coils in fiat spirals, a stationaryyieldable presser plate, a l

rotatable presser plate, and means toi' urging said plates together.

8. In a winding' machine, a teed roll, a pulley, and driving mea-ns forsaid pulley, arranged so that the material to be wound will be woundtightly upon the pulley whenever the material is pulled taut by the'feed roll, whereby said pulley serves to advance the material. l

9. In a machine tor windiira' Coils in dat spirals, a pair of presserplates, means t' i urging said presser plates together, eding nozzledirecting a conductor between the presser plates, and means for urgingthe conductor forward under arial thrust through said nozzle.

l0. In a machine forwinding coils in hat spira-ls, a pair of presserplates, means for urging said plates together, means for feeding aconductor between said plates, a flange on the periphery of one ot saidplates, sup porting the outside of the coil.

ll. In apmachine for winding coils in dat said nozzle, and a flangeatthe periphery o itf vone oit sald the coil.

plates, supporting the outside of 12. In a machine for Winding coils inflat spirals, a pair of presser'plates, means for Y feeding` a conductorbetween said plates so as to Wind said conductor into spirals formedalternately from the inside to the outside and @Mews from the outsidetothe inside, and means for applyingl a tension fto said conductor whenWinding `from the inside out and for applying an 4axial thrust to saidconductor when Winding` from the outside in.

' 13. In a machine for Winding coils in ilat spirals, a pair of presserplates, means for urging-said plates together, a feeding nozzle, and aguiding heel carried by said nozzle adapted to rest on a preceding',`turn.

' In Witness whereof, I have hereunto set my hand this 23rd day ofMarch, 1921.

LOUIS F. BLUME.

